> Once you buy the self driving car, you will want it to be on the road as much as possible, you want return on investment.

I don't really follow the argument. I don't think of my car as an "investment." In fact quite the opposite, I think of it as an extremely depreciatory purchase that is partly a necessary cost of living (commuting for work, shopping) and partly for leisure (visiting friends and family, going out on the town, road trips). It makes very little sense to me to "want to be on the road as much as possible," especially considering that most of the depreciation for when I eventually sell it or trade it in is likely going to be based on the odometer rather than the calendar.